PPrivate Fund Data
CompaniesFundsPeopleRankingsScreener

Athyrium Opportunities Fund Ii-B Master LP

Hedge FundFund ID 805-9073731353Cayman Islands
Gross assets
$23M
Min. investment
Beneficial owners
2
Size rank
Top 67%
Audited
Yes
Structure
Standalone

About this fund

Athyrium Opportunities Fund Ii-B Master LP is a hedge fund managed by Athyrium Capital Management LP. The fund reports $23 million in gross assets, placing it among the top 67% of private funds by size. Its financial statements are audited annually. Private funds are not required to publicly disclose returns; Form ADV reports assets, structure, and service providers, shown above.

Fund details

Fund ID805-9073731353
Fund typeHedge Fund
3(c)(1) exclusionNo
3(c)(7) exclusionYes
Master fundNo
Feeder fundNo
Fund of fundsNo
Relies on exemption from registrationYes
Annual auditYes
Prepared per GAAPYes
Sub-advisedNo
% of assets independently valued52%

Other funds from this manager

FundTypeGross assets
Athyrium Opportunities Fund IV Master (non-Us) LPHedge$1.27B
Athyrium Opportunities Fund III Master (non-Us) LPHedge$496.5M
Athyrium Opportunities Fund IV LPHedge$216.5M
See all 7 funds from this manager — unlock the full record.
Join to unlock · $37/mo

Frequently asked questions

How large is Athyrium Opportunities Fund Ii-B Master LP?

Athyrium Opportunities Fund Ii-B Master LP reports $23 million in gross assets, among the top 67% of private funds by size.

Who manages Athyrium Opportunities Fund Ii-B Master LP?

Athyrium Opportunities Fund Ii-B Master LP is managed by Athyrium Capital Management LP.

Does Athyrium Opportunities Fund Ii-B Master LP disclose returns?

No. Private funds are not required to publicly disclose performance. Form ADV reports assets, structure, and service providers.

Manager

Service providers

Prime broker
None reported
Custodian
Administrator
Auditor

Reported gross assets

$23M▼ 37%
Mar '25 — $36.4MApr '25 — $36.4MMay '25 — $36.4MJun '25 — $36.4MJul '25 — $36.4MAug '25 — $36.4MSep '25 — $36.4MOct '25 — $36.4MNov '25 — $36.4MDec '25 — $36.4MJan '26 — $36.4MFeb '26 — $36.4MMar '26 — $23MApr '26 — $23MMay '26 — $23MJun '26 — $23M
Mar '25Form ADV, monthlyJun '26

How this fund compares

Gross assetsTop 67%
Larger than 33% of 67,041 private funds
Gross assets vs Hedge FundsTop 80%
Larger than 20% of 12,442 hedge funds

Investor base

Adviser & related persons2%
Funds of funds8%
Non-U.S. persons8%
Share of the fund's beneficial ownership reported on Form ADV. Categories can overlap.